Spring arrangement



Nov. 1 s, 1930,

P.- FUSGEN E]? A],

SPRINCT'ARRANGEMENT Filed Feb. 1, 1929 m? w T2 J m No r i D Nrm A,

Patented Nov. 18, 1930 UNITED srArss m oF FrcE PETER EfisGEN AND WALTER KOST, E 'IDUSSELDORF, G RMANY, ASSIGNORS T0 RHEINISCI-IE METALLWAAREN- UND MAScHrNENFABEIK, 0E DUSSELDORF-DEREN- DORE, GERMANY SPRING ARRANGEMENT v Application filed' February 1, 1929, Serial No. 336,842, and in Germany June 16, 1927.

Spring arrangements are well known which act from two opposite directions upon a body to be held in a centre position and which in both directions offer a resilient resistance to the displacement of said body equal to the tension or compression of the spring. Such devices are,- for instance, so arranged, that, on' a movement of the body out of its centre position, the spring acting in the direction of this displacement is arrested by a stop, so that the force of this spring no longer affects said body and only the spring opposing this displacement presses against the body. On a displacement of said body in the opposite direction, the actions of both springs V side of the spring is caused to bear against a fixed stop in the very moment in which the other spring or the other end of the spring respectively is affected by the body. Such exact adjustments, of course, cause rather high additional expenses in the manufacture of the device which often consists of relatively rough elements only. If, however, the adjustment is not exact no pressure or ten-.

. sion at all acts upon the body during a more or less great amount of displacement of the same out of the centre position, as either both springs or both ends of the spring. are strained simultaneously and the compression or tension forces are balanced, or no compression or tension force acts upon the sides of the body when occupying its centre position.

These disadvantages are obviated by the present invention. a 7

According to the invention two thrust members are connected together by a gear in such a manner, that they positivelymay be .moved in opposite directions only. A common spring acts upon these thrust members in such a manner, that these members arecaused to bear aganlsta stop or stops pro vided at the body to' be held resiliently. The spring and with the same the two thrust elee ments come at restonly, when both thrust members bear against the body to be held.

The spring therefore tends to'always bring the'body in its centre positionand to hold saidfbody int-his position by acompression or tension force acting from both sides, withp out an ex'actand therefore expensive adjustment being iequired.

In the accompanying drawing two .constructions of a device according to the invention areshown by way of example in Figures 1 and 2. n i i As shown in Figure l the body-ato be held resiliently, for'instance, the cradle in the bogie of a railway carriage,'is arranged between theiends' of two angle levers b and b the pivots 0 and c of which are journalled in fixed points Theother ends of theangle levers are connected together by toothed segments 41- or in similar manneri Pivoted to theone of the angle levers, in the present case 'toQthe angle'lever bi, is a pressure rod e against therend surface of which acts the pressure of a compression spring guided in a fixed sleeve" If now' the body 'a moves to the left in Figure h'the springf'is' compressed by the pressure rod 6' which in this manner finds the required resistance. If, however, the body a is moved to the opposite jdirectiomthe anglelever b is turned about its" fixed pointc' in a clock wise direction andcauses, bythe engagement of the toothed'segments d, the angle lever bi to 'turn'about the fi'xedpoint 0 in ananticlock-wise. direction, so that the rod 6' is again forcedito moveff to the left and the spring therefore is compressed. The body a 'is 'therefore' always subjected. to the same resistance qagainst" movementffno matter whether it moves to the left or to'the right.

The springfalways'tends to-forc'ethe body a: into'the centre 'position, that is to's'ay into the. position in which both angle levers b1 and *b' 'engage' the body aand act upon the same with a force which corresponds to the compression or tension given to the spring.

In the construction illustrated in Figure 2 a two-armed lever b is connected to the stops h and b for thebody a. The stop it is also connected to the pressure rod 0 ofthe vice isexactly the same as described with reference to the construction shown in 'Figa ure 1.

thrust elements in a position in which they engage said body.

In testimony whereof we have afiixed our signatures.

PETER FUSGEN. WALTER KOST.

spring f, so that the operation of this de-J 7 Instead of using a compression spring, a

tension s ring or a compressed air buffer may also e employed.

. Moreover, instead of the twooppositely tion, thrust elements engaging a body to be held resiliently and connected with each other so as to positively move together in opposite directions, a rod pivotally connected to one of said thrust elements, a

sleeve, and a spring arranged in said sleeve and bearing at one end against the bottom of said sleeve and at theother end against said rod, said spring always tending to brin the said thrust elements in a position inw ich they engage said body.

2. In a spring arrangement, in combination, two angle levers each pivoted to a fixed point and one arm at each angle lever engaging a body to be held resiliently, a

toothed segment carried by the other arm of eachv angle lever and meshing with one another, a, rod pivotally connected to one of said angle levers, a sleeve, and a spring arranged in said sleeve and bearing at one end against the ,bottom of said sleeve and at the other end against said rod. c

3. In a sprin arrangement,vin combination, a series .0 angularly arranged thrust elements engaging a body to be held resil iently, means for interconnecting said elements, and spring means acting upon said thrust elements and connected to one thereof- 4. In a spring arrangement, in combina* tion, a series of angularly arranged thrust elements engaging a body to beheld resiliently, means for connecting said elements in pairs and springs acting upon one of said thrust-elements connected in pairs. I

5. A spring arrangement fora body'comprising a plurality of thrust elements engaging the body to be held resiliently and V interconnected to positively move togetherin opposite directions, a rod associatedwith one 0 said thrust elements, and a spring bearing aga1nst-sa1dr0d to' always tend to bring the 

